CN112240166B - Water circulation treatment device for coal mine underground directional kilometer drilling machine and construction method thereof - Google Patents
Water circulation treatment device for coal mine underground directional kilometer drilling machine and construction method thereof Download PDFInfo
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- CN112240166B CN112240166B CN202011099884.2A CN202011099884A CN112240166B CN 112240166 B CN112240166 B CN 112240166B CN 202011099884 A CN202011099884 A CN 202011099884A CN 112240166 B CN112240166 B CN 112240166B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 238000005553 drilling Methods 0.000 title claims abstract description 85
- 239000003245 coal Substances 0.000 title claims abstract description 12
- 238000010276 construction Methods 0.000 title claims description 9
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000001914 filtration Methods 0.000 claims abstract description 33
- 238000004062 sedimentation Methods 0.000 claims abstract description 29
- 238000002156 mixing Methods 0.000 claims abstract description 27
- 239000006228 supernatant Substances 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 239000010419 fine particle Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 13
- 229910000278 bentonite Inorganic materials 0.000 claims description 9
- 239000000440 bentonite Substances 0.000 claims description 9
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a water circulation treatment device for a coal mine underground directional kilometer drilling machine, which comprises a sedimentation tank, a filter tank, a liquid mixing tank, a centrifugal pump, a drilling machine and a mixed flow pump which are sequentially connected through a pipeline, wherein the output end of the centrifugal pump is fixedly connected with the drilling machine through a pipeline; according to the invention, the accumulated liquid at the bottom of the drill hole of the mixed flow pump is pumped out and discharged into the sedimentation tank, large-particle impurities and suspended matters in the accumulated liquid are precipitated out in the sedimentation tank, then the precipitated supernatant is conveyed into the filtering tank through the water pump, fine particles in the supernatant are filtered out through the filtering tank, so that clear water is obtained, and then the clear water obtained through filtering is conveyed into the liquid mixing tank, so that the water in the accumulated liquid can be recycled, and the water resource is saved.
Description
Technical Field
The invention relates to the technical field of kilometer orientation, in particular to a water circulation treatment device of a coal mine underground directional kilometer drilling machine and a construction method thereof.
Background
The kilometer orientation technology is characterized in that the drill bit direction is controlled and processed in time by utilizing the directional deviation rectification function of a drilling machine and through the accurate measurement and automatic analysis of a measurement system, so that the drilling track is controlled, and the kilometer orientation technology has the advantages of long single-hole forming distance, large detection range, low labor intensity and the like; meanwhile, the kilometer orientation technology can ensure that drilling operation and tunneling operation are carried out synchronously; the drilling track is controllable; supplementing accurate geological data; the safety of drilling operation is improved; reducing material consumption, etc.
The kilometer directional drilling machine is mainly used for medium-hard coal seam construction, gas drainage long drilling holes and branch holes, and can also be used for construction geological detection drilling holes; the fields of over standard gas in high gas mines and outburst mines, oil exploration, geological exploration and the like are solved through gas pre-extraction.
However, the existing kilometer directional drilling machine has the following defects when in use.
1. When a kilometer directional drilling machine is adopted to drill holes in a coal mine, drilling fluid formed by mixing water and bentonite is injected into the drilled holes in order to facilitate drilling, but after the drilling fluid is injected into the drilled holes, accumulated fluid at the bottoms of the drilled holes needs to be pumped out and then directly discharged, so that waste of water resources is caused;
2. when the drilling liquid is injected into the drill hole, the injection effect of the drilling liquid is poor, and the drilling liquid cannot be uniformly sprayed to the inner wall of the drill hole, so that the inner wall of the drill hole cannot be well protected.
Disclosure of Invention
The invention aims to provide a water circulation treatment device for a directional kilometer drilling machine in a coal mine and a construction method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a directional kilometer rig water cycle processing apparatus in colliery is in pit, includes sedimentation tank, filtering ponds, liquid mixing tank, centrifugal pump, rig and mixed flow pump that connect gradually through the pipeline, just mixed flow pump output with pass through pipeline fixed connection between the sedimentation tank.
Wherein, the rig is including fixed cover, division board and protecting sheathing, fixed cover axle center department rotates and installs the drilling rod, bolt fixed mounting is passed through to drilling rod one end has the drill bit, protecting sheathing has been cup jointed in the fixed cover outside, the inside even fixed mounting of bolt that passes through of protecting sheathing has the division board, the interlude hole has been seted up to division board axle center department, the division board passes through the interlude hole cup joints in the fixed cover outside, be provided with expanding spring between the division board, expanding spring one end pass through the bolt with protecting sheathing inner wall fixed connection, the expanding spring other end pass through the bolt with fixed cover outer wall fixed connection.
The drilling rod is inserted into the shaft sleeve, the drilling rod penetrates through the shaft sleeve, and the drilling rod is rotatably connected with the shaft sleeve.
Wherein, the fixed cover outer wall is close to one side of drill bit evenly is seted up the inlet opening.
Wherein, fixed cover inside has a liquid return pipe through bolt fixed mounting, liquid return pipe one end runs through fixed cover, just liquid return pipe runs through the one end of fixed cover pass through the bolt with mixed flow pump input fixed connection.
The centrifugal pump is characterized in that a water guide cavity is formed in the outer wall of the protective shell, water outlet holes penetrating through the water guide cavity are uniformly formed in the surface of the protective shell, a liquid inlet pipe penetrating through the water guide cavity is inserted into one end of the protective shell, and one end, far away from the protective shell, of the liquid inlet pipe is fixedly connected with the output end of the centrifugal pump through a bolt.
The liquid return pipe and the liquid inlet pipe are both made of metal corrugated pipes.
The fixed sleeve and the protective shell are both of cylindrical structures, the partition plate is of a disc-shaped structure, and the axial lead of the fixed sleeve, the axial lead of the partition plate and the axial lead of the protective shell are located on the same straight line.
Wherein, the inner diameter size of the through hole is larger than the outer diameter size of the fixing sleeve.
The invention also relates to a construction method of the water circulation treatment device of the coal mine underground directional kilometer drilling machine, which comprises the following steps:
s1, adding clean water into a sedimentation tank, conveying the clean water in the sedimentation tank into a filtering tank through a water pump, conveying the clean water in the filtering tank into a liquid mixing tank through the water pump, adding bentonite into the liquid mixing tank, uniformly mixing the bentonite and the clean water together to prepare drilling liquid, and pumping out the drilling liquid in the liquid mixing tank through a centrifugal pump;
s2, conveying the drilling fluid into the water guide cavity through a fluid inlet pipe by the centrifugal pump, and uniformly spraying the drilling fluid on the inner wall of the drilled hole through a water outlet hole on the surface of the protective shell so as to cool the drill bit and simultaneously carry rock debris and stabilize the protective wall;
s3, then the accumulated liquid at the bottom of the drill hole flows into the fixed sleeve through the water inlet hole, and the mixed flow pump pumps out the accumulated liquid in the fixed sleeve through the liquid return pipe;
s4, discharging the pumped effusion into a sedimentation tank through a pipeline by a mixed flow pump, precipitating large-particle impurities and suspended matters in the effusion in the sedimentation tank, conveying the precipitated supernatant into a filtering tank through a water pump, and filtering fine particles in the supernatant through the filtering tank to obtain clear water; clear water obtained by filtering is conveyed into the liquid mixing pool, so that water in the liquid can be recycled.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the accumulated liquid at the bottom of the drill hole of the mixed flow pump is pumped out and discharged into the sedimentation tank, large-particle impurities and suspended matters in the accumulated liquid are precipitated out in the sedimentation tank, then the precipitated supernatant is conveyed into the filtering tank through the water pump, fine particles in the supernatant are filtered out through the filtering tank, so that clear water is obtained, and then the clear water obtained through filtering is conveyed into the liquid mixing tank, so that the water in the accumulated liquid can be recycled, and the water resource is saved.
2. According to the invention, the drilling fluid is conveyed to the interior of the water guide cavity through the fluid inlet pipe, and then is uniformly sprayed on the inner wall of the drilled hole through the water outlet holes on the surface of the protective shell so as to cool the drill bit, and meanwhile, the inner wall of the drilled hole can be uniformly sprayed by the drilling fluid, so that the inner wall of the drilled hole can be well protected, and the stability of the inner wall of the drilled hole is improved.
Drawings
FIG. 1 is a schematic diagram of a drilling fluid circulation structure according to the present invention;
FIG. 2 is a schematic view of the main structure of the drilling machine of the present invention;
FIG. 3 is a schematic view of the main sectional structure of the drilling machine of the present invention;
FIG. 4 is a schematic side view of the drilling rig of the present invention;
FIG. 5 is a schematic diagram of a side view cross-sectional configuration of the drilling rig of the present invention;
FIG. 6 is an enlarged view of the part A in FIG. 3;
fig. 7 is a schematic front view of the partition board of the present invention.
In the figure: 10-a sedimentation tank; 20-a filtration tank; 30-a liquid mixing tank; 40-centrifugal pump; 50-mixed flow pump; 60-a drilling machine; 70-fixing a sleeve; 71-a drill rod; 72-shaft sleeve; 73-water inlet; 74-a drill bit; 75-a liquid return pipe; 80-a separation plate; 81-through hole; 82-a telescoping spring; 90-a protective housing; 91-a water guide cavity; 92-water outlet; 93-liquid inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a water circulation treatment device for a directional kilometer drilling machine in a coal mine well comprises a sedimentation tank 10, a filter tank 20, a liquid mixing tank 30, a centrifugal pump 40, a drilling machine 60 and a mixed flow pump 50 which are sequentially connected through pipelines, wherein the output end of the mixed flow pump 50 is fixedly connected with the sedimentation tank 10 through a pipeline.
Clear water is added into a sedimentation tank 10, then the clear water in the sedimentation tank 10 is conveyed into a filtering tank 20 through a water pump, then the clear water in the filtering tank 20 is conveyed into a liquid mixing tank 30 through the water pump, bentonite is added into the liquid mixing tank 30, then the bentonite and the clear water are uniformly mixed together to prepare drilling liquid, then the drilling liquid in the liquid mixing tank 30 is pumped out through a centrifugal pump 40, then the drilling liquid is conveyed to a drilling machine 60 through the centrifugal pump 40, a drill bit 74 of the drilling machine 660 is cooled through the drilling liquid, and meanwhile, the inner wall of a drilled hole can be protected; then the mixed flow pump 50 discharges the pumped effusion into the sedimentation tank 10 through a pipeline, large granular impurities and suspended matters in the effusion are precipitated in the sedimentation tank 10, the precipitated supernatant is conveyed into the filtering tank 20 through a water pump, fine particles in the supernatant are filtered out through the filtering tank 20, so that clear water is obtained, and the filtered clear water is conveyed into the mixed flow tank 30, so that the water in the effusion can be recycled.
Wherein, rig 60 is including fixed cover 70, division board 80 and protecting sheathing 90, fixed cover 70 axle center department rotates and installs drilling rod 71, drilling rod 71 one end has drill bit 74 through bolt fixed mounting, protecting sheathing 90 has been cup jointed in the fixed cover 70 outside, the inside even fixed mounting of bolt that passes through of protecting sheathing 90 has division board 80, the hole 81 of wearing has been seted up in division board 80 axle center department, division board 80 cup joints in the fixed cover 70 outside through hole 81 of wearing, be provided with expanding spring 82 between the division board 80, bolt and protecting sheathing 90 inner wall fixed connection are passed through to expanding spring 82 one end, the expanding spring 82 other end passes through bolt and fixed cover 70 outer wall fixed connection.
Wherein, live fixed cover 70 through protective housing 90 protection, at rig 60 during operation, keep apart drilling inner wall and fixed cover 70 through protective housing 90, can play the supporting role to the drilling inner wall through protective housing 90, avoid the early fixed cover 70 surface of earth adhesion that the drilling inner wall falls simultaneously.
Wherein, in use, the drill 60 rotates the drill bit 74 via the drill rod 71, and the drilling process is performed by the rotating drill bit 74.
Wherein, the centers of the two ends of the fixed sleeve 70 are respectively embedded with a shaft sleeve 72 matched with the drill rod 71, the drill rod 71 penetrates through the shaft sleeve 72, and the drill rod 71 is rotatably connected with the shaft sleeve 72.
The shaft sleeve 72 is matched with the drill rod 71, so that the drill rod 71 can rotate conveniently, and the drill rod 71 is prevented from inclining in the rotating process.
Wherein, the outer wall of fixed cover 70 is close to one side of drill bit 74 and evenly has seted up inlet opening 73, when pouring into the drilling liquid into the drilling inside, and the drilling liquid can mix earth and sink into the drilling bottom, forms the hydrops in the drilling bottom, and then the hydrops flows into fixed cover 70 inside through inlet opening 73.
Wherein, it has the cotton layer of filtration to inlay inside inlet opening 73, can filter earth and the large granule impurity in the hydrops through filtering the cotton layer, avoids large granule impurity and earth to enter into the normal rotation of fixed cover 70 inside influence drilling rod 71.
Wherein, fixed cover 70 is inside to have back liquid pipe 75 through bolt fixed mounting, returns fixed cover 70 of fixed pipe 75 one end through, and returns the one end that fixed cover 70 was run through to liquid pipe 75 and pass through bolt and mixed flow pump 50 input end fixed connection.
After the effusion flows into the interior of the fixed sleeve 70, the mixed flow pump 50 pumps out the effusion in the interior of the fixed sleeve 70 through the liquid return pipe 75, and then the mixed flow pump 50 discharges the pumped effusion into the interior of the sedimentation tank 10.
Wherein, water guide chamber 91 has been seted up to the inside of protecting sheathing 90 outer wall, and protecting sheathing 90 surfaces evenly sets up the apopore 92 that runs through water guide chamber 91, and protecting sheathing 90 one end is pegged graft and is had the feed liquor pipe 93 that runs through water guide chamber 91, and bolt and centrifugal pump 40's output fixed connection is passed through to the one end that protecting sheathing 90 was kept away from to feed liquor pipe 93.
Wherein, when drill bit 74 carried out drilling treatment, will mix the inside drilling liquid in liquid pond 30 and take out through centrifugal pump 40, then centrifugal pump 40 will drill the liquid through feed liquor pipe 93 and carry water guide chamber 91 inside, then evenly spray the drilling liquid in water guide chamber 91 to the drilling inner wall through apopore 92 on protective housing 90 surface to play the guard action to the drilling inner wall, the drilling liquid falls to drill bit 74 surface simultaneously, plays the cooling effect to drill bit 74.
Wherein, return liquid pipe 75 and feed liquor pipe 93 and all adopt corrugated metal pipe to make, make back liquid pipe 75 and feed liquor pipe 93 through corrugated metal pipe, when drill bit 74 during operation, made things convenient for the stretch and the shrink of returning liquid pipe 75 and feed liquor pipe 93, improved the life who returns liquid pipe 75 and feed liquor pipe 93.
The fixing sleeve 70 and the protective shell 90 are both cylindrical structures, the isolation plate 80 is a disc-shaped structure, and the axial line of the fixing sleeve 70, the axial line of the isolation plate 80 and the axial line of the protective shell 90 are located on the same straight line.
Wherein, the internal diameter size of interlude hole 81 is greater than the external diameter size of fixed cover 70, keep apart fixed cover 70 and protecting sheathing 90 through division board 80, evenly set up expanding spring 82 between fixed cover 70 and protecting sheathing 90 simultaneously, when drill bit 74 further drilling downwards, if there is rubble or earth to fall in the drilling inner wall, then rubble and earth produce the collision to protecting sheathing 90, thereby arouse expanding spring 82 to produce and stretch out and draw back, consume the impact that rubble or earth produced protecting sheathing 90 through expanding spring 82, avoid producing the collision to fixed cover 70, place fixed cover 70 and take place the slope because of the collision, thereby guarantee that drill bit 74 can handle along sharp drilling along directional direction, the precision of drill bit 74 drilling has been improved.
The invention also relates to a construction method of the water circulation treatment device of the coal mine underground directional kilometer drilling machine, which comprises the following steps:
s1, adding clean water into a sedimentation tank 10, conveying the clean water in the sedimentation tank 10 into a filtering tank 20 through a water pump, conveying the clean water in the filtering tank 20 into a liquid mixing tank 30 through the water pump, adding bentonite into the liquid mixing tank 30, uniformly mixing the bentonite and the clean water together to prepare drilling liquid, and pumping out the drilling liquid in the liquid mixing tank 30 through a centrifugal pump 40;
s2, conveying the drilling liquid into the water guide cavity 91 through the liquid inlet pipe 93 by the centrifugal pump 40, and uniformly spraying the drilling liquid on the inner wall of a drilled hole through the water outlet hole 92 on the surface of the protective shell 90 so as to cool the drill bit 74 and simultaneously ensure that the drilling liquid carries rock debris and stabilizes a retaining wall;
s3, then the accumulated liquid at the bottom of the drilled hole flows into the fixed sleeve 70 through the water inlet 73, and the mixed flow pump 50 pumps out the accumulated liquid in the fixed sleeve 70 through the liquid return pipe 75;
s4, discharging the pumped effusion into the sedimentation tank 10 through a pipeline by the mixed flow pump 50, precipitating large-particle impurities and suspended matters in the effusion in the sedimentation tank 10, conveying the precipitated supernatant into the filtering tank 20 through the water pump, and filtering out fine particles in the supernatant through the filtering tank 20 to obtain clear water; clear water obtained by filtering is conveyed into the liquid mixing pool 30, so that water in the liquid can be recycled.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A colliery is directional kilometer rig hydrologic cycle processing apparatus in pit, its characterized in that: the device comprises a sedimentation tank (10), a filtering tank (20), a liquid mixing tank (30), a centrifugal pump (40), a drilling machine (60) and a mixed flow pump (50) which are sequentially connected through pipelines, wherein the output end of the mixed flow pump (50) is fixedly connected with the sedimentation tank (10) through a pipeline;
the drilling machine (60) comprises a fixed sleeve (70), an isolation plate (80) and a protective shell (90), wherein a drill rod (71) is rotatably installed at the axis of the fixed sleeve (70), a drill bit (74) is fixedly installed at one end of the drill rod (71) through a bolt, the protective shell (90) is sleeved on the outer side of the fixed sleeve (70), the isolation plate (80) is uniformly and fixedly installed inside the protective shell (90) through a bolt, a through hole (81) is formed in the axis of the isolation plate (80), the isolation plate (80) is sleeved on the outer side of the fixed sleeve (70) through the through hole (81), a telescopic spring (82) is arranged between the isolation plates (80), one end of the telescopic spring (82) is fixedly connected with the inner wall of the protective shell (90) through a bolt, and the other end of the telescopic spring (82) is fixedly connected with the outer wall of the fixed sleeve (70) through a bolt;
shaft sleeves (72) matched with the drill rods (71) are embedded in the centers of the two ends of the fixed sleeve (70), the drill rods (71) penetrate through the shaft sleeves (72), and the drill rods (71) are rotatably connected with the shaft sleeves (72);
one side of the outer wall of the fixed sleeve (70) close to the drill bit (74) is uniformly provided with water inlet holes (73);
a liquid return pipe (75) is fixedly installed inside the fixed sleeve (70) through a bolt, one end of the liquid return pipe (75) penetrates through the fixed sleeve (70), and one end of the liquid return pipe (75) penetrating through the fixed sleeve (70) is fixedly connected with the input end of the mixed flow pump (50) through a bolt;
a water guide cavity (91) is formed in the outer wall of the protective shell (90), water outlet holes (92) penetrating through the water guide cavity (91) are uniformly formed in the surface of the protective shell (90), a liquid inlet pipe (93) penetrating through the water guide cavity (91) is inserted into one end of the protective shell (90), and one end, far away from the protective shell (90), of the liquid inlet pipe (93) is fixedly connected with the output end of the centrifugal pump (40) through a bolt;
the fixing sleeve (70) and the protective shell (90) are both cylindrical structures, the isolation plate (80) is a disc-shaped structure, and the axial line of the fixing sleeve (70), the axial line of the isolation plate (80) and the axial line of the protective shell (90) are positioned on the same straight line;
the inner diameter of the through hole (81) is larger than the outer diameter of the fixing sleeve (70).
2. The water circulation treatment device for the coal mine underground directional kilometer drilling machine as recited in claim 1, characterized in that: the liquid return pipe (75) and the liquid inlet pipe (93) are both made of metal corrugated pipes.
3. The construction method of the water circulation treatment device of the coal mine underground directional kilometer drilling machine according to claim 1 or claim 2, characterized by comprising the following steps: the method comprises the following steps:
s1, adding clean water into a sedimentation tank, conveying the clean water in the sedimentation tank into a filtering tank through a water pump, conveying the clean water in the filtering tank into a liquid mixing tank through the water pump, adding bentonite into the liquid mixing tank, uniformly mixing the bentonite and the clean water together to prepare drilling liquid, and pumping out the drilling liquid in the liquid mixing tank through a centrifugal pump;
s2, conveying the drilling fluid into the water guide cavity through a fluid inlet pipe by the centrifugal pump, and uniformly spraying the drilling fluid on the inner wall of the drilled hole through a water outlet hole on the surface of the protective shell so as to cool the drill bit and simultaneously carry rock debris and stabilize the protective wall;
s3, then the accumulated liquid at the bottom of the drill hole flows into the fixed sleeve through the water inlet hole, and the mixed flow pump pumps out the accumulated liquid in the fixed sleeve through the liquid return pipe;
s4, discharging the pumped effusion into a sedimentation tank through a pipeline by a mixed flow pump, precipitating large-particle impurities and suspended matters in the effusion in the sedimentation tank, conveying the precipitated supernatant into a filtering tank through a water pump, and filtering fine particles in the supernatant through the filtering tank to obtain clear water; clear water obtained by filtering is conveyed into the liquid mixing pool, so that water in the liquid mixing pool can be recycled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011099884.2A CN112240166B (en) | 2020-10-15 | 2020-10-15 | Water circulation treatment device for coal mine underground directional kilometer drilling machine and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011099884.2A CN112240166B (en) | 2020-10-15 | 2020-10-15 | Water circulation treatment device for coal mine underground directional kilometer drilling machine and construction method thereof |
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| CN112240166B true CN112240166B (en) | 2023-01-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2412088Y (en) * | 1999-12-12 | 2000-12-27 | 大庆石油管理局钻井研究所 | Near bit type drilling tool slurry preventer |
| US6491097B1 (en) * | 2000-12-14 | 2002-12-10 | Halliburton Energy Services, Inc. | Abrasive slurry delivery apparatus and methods of using same |
| CN204312028U (en) * | 2014-11-15 | 2015-05-06 | 山西金鼎高宝钻探有限责任公司 | Underground coal mine horizontal orientation km rig water treatment facilities |
| CN110424903B (en) * | 2019-09-04 | 2024-07-02 | 高九华 | Drill bit stabilizing double-channel slag collecting and discharging device |
| CN110761713A (en) * | 2019-10-22 | 2020-02-07 | 中国地质大学（北京） | Rotary drilling system and soil and underground water in-situ remediation process using same |
| CN213234938U (en) * | 2020-10-15 | 2021-05-18 | 西安乔木科技技术有限公司 | Water circulation treatment device for underground directional kilometer drilling machine of coal mine |
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